Puritan Bennett GoodKnight® 420G CPAP System
Introducing the world's smallest, lightest CPAP devices

Imagine a CPAP device so small you barely notice it on your nightstand, and so quiet you wonder if it's even on.
At a mere 1.54lbs, the ultra-quiet GoodKnight® 420G units are the world's smallest, lightest CPAP devices. With this incredible CPAP device, a good night's sleep will be a dream come true.
- GoodKnight® 420G: This basic model provides quiet, effective therapy for a wide range of CPAP prescriptions.
- GoodKnight® 420S: This more fully featured model records up to 600 sessions of date/time usage data. It also detects persistent residual apnea, hypopnea and snoring events that occur at set-pressure, allowing appropriate adjustments to therapy.
Product Highlights:
- Conveniently small size: 3" tall, 5 ½" wide, 8" deep
- Weighs only 1 ½ pounds.
- Ultra-quiet operation.
- Easy-to-use front-panel buttons.
- Ease into sleep with adjustable ramp time and start pressure.
Clinical Features
- Wide pressure range of 4 to 20 cm H2O makes it versatile for a range of patient prescriptions.
- System can be used with pediatric patients over 66 pounds (30 kg) as well as adults.
- Automatic leak compensation ensures precise delivery of prescribed pressure.
- Compatible with the complete family of Puritan Bennett CPAP interfaces, including the Breeze SleepGear system.
Travel Features
- Automatic voltage regulator enables device to be used nearly anywhere in the world - and at any elevation.
- Optional D/C power supply allows patients to maintain therapy while camping or on the road.
Nicknamed the "Traveler", due to its small size, the GoodKnight® 420G Nasal CPAP System is the smallest and lightest continuous positive airway pressure (CPAP) device on the market. It is designed to help active sleep disorder patients preserve their lifestyles while complying with their prescribed therapy.
Product Features
- Conveniently small size (weighs only 1.54 pounds and measures 5.6" W x 2.9" H x 7.7" L).
- Ultra-quiet operation.
- Wide pressure range (4 to 20 cmH20)
- Adjustable pressure calibration.
- Durable construction.
- Automatic voltage regulator.
- Optional D/C power supply.
- Automatic leak compensation.
- Breathing compliance meter.
- 2 Year Manufacturer Warranty
Departmental Usage
- Home Care
- Respiratory Care
- Sleep Lab
Performance
- Pressure range: 4 to 20 cmH2O (±1 cmH2O)
- Pressure adjustment: 0.5 cmH2O
- Ramp time: 0 to 30 minutes (5-min. increments)
- Ramp start pressure: 4 to CPAP pressure
- Altitude compensation: 0 to 7,874 ft/2400 m
- Minimum sound level: 25.1 dBA
- Maximum sound level: 31 dBA at 10 cmH2O
Physical Characteristics
- Size: 5.6 in W x 2.9 in H x 7.7 in L (14.2 cm x 7.5 cm x 19.5 cm)
- Weight: 1.54 lb (760 g)
- Filters: Cleanable and high-efficiency
Power Characteristics
- Power supply: Input range 100 - 240 V, 50 - 60 Hz
- Power consumption: 20 VA
- Battery: 12 VCC
Environmental Requirements
- Operating Temperature: +41°F to +104°F (+5°C to +40°C)
- Operating Humidity: Between 10% and 95% noncondensing